Thread: Vincent antenna
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Old December 16th 07, 11:36 AM posted to rec.radio.amateur.antenna
Keith Dysart[_2_] Keith Dysart[_2_] is offline
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Default Loading Coils; was : Vincent antenna

On Dec 16, 1:18 am, Cecil Moore wrote:
Keith Dysart wrote:
Keith Dysart wrote:
given a black box of
unknown internals but told that its terminals
present -j567 at the frequency of interest,
would you refuse to calculate the length
of 600 ohm line needed to produce 0 ohms?


Though I notice that you still have not
answered the question.


Why would anyone refuse to calculate the length of
600 ohm line needed to produce 0 ohms? I think I
was the first to calculate it at 43.4 degrees.


Exactly. Why would anyone refuse?

So the next question is: What is the phase change
at the terminals of the black box?

1) -93 degrees? (previous answer when it was a capacitor)
2) 36.6 degrees? (previous answer when it was 10 degrees of 100 ohm
line)
3) 0 degrees? (previous answer when it was 46.6 degrees of 600 ohm
line)
4) undecidable?
5) undefined?
6) irrelevant?
7) ???

....Keith